heatsink. fan question

is the stock heatsink fan for the 940 phenom II deneb an active cooler, if so i've been using an optional cooler that may have been making my system unstable.

says in mobo instruction book, not to use northbridge cooling fan, if im using active cpu cooling... only use it if im using passive cpu cooling, or liquid cooling.

so im under the impression that my stock HSF is active cooling for my phenom II 940, If my assumption is correct, im going to remove the optional fan and see if that brings my temperature and noise levels down some.

thx in advance

Active means there's airflow, while passive means there isn't. However, regardless of the fact that you have an active heatsink, removing the fan shouldn't lower your temps, but rather increase it. Are you sure the fan is blowing air downwards? That might help your temperatures a bit.

Anything with a fan is an "active cooling solution." A heatsink without a fan is a "passive cooler." A Phenom II X4 needs to have either active air cooling, water cooling, or something even better. The stock heatsink/fan is an active cooler. A high-performance CPU like that needs that stock cooler at bare minimum, and an aftermarket CPU cooler like the Cooler Master Hyper 212+ will give better results.

Active means there's airflow, while passive means there isn't. However, regardless of the fact that you have an active heatsink, removing the fan shouldn't lower your temps, but rather increase it. Are you sure the fan is blowing air downwards? That might help your temperatures a bit.

ravenguard90

no sorry i mean removing the tiny optional northbridge fan... came with mobo... (in instruction booklet it says use ONLY with liquid cooling, or passive cooling, DO NOT use with active cooling, it may destablize airflow.) I wasn't gonna remove any case fans, or the HSF...

thx for the timely response though, i was thinking it was active, but just wanted to make sure.

Does it attach to the top of the heatsink, near the CPU, or the bottom, near the PCI-E slots?

If it attaches near the CPU, can you attach on the heat sink near the PCI-E slots?

well its the stock hsf that comes with the amd phenom II 940.

it installs directly on top.. just like most hsf.. which would make it active.

btw with CnQ function i was able to achieve an AI overclock of 5% meaning 209.9 x (whatever CnQ adjusts the multiplyer to)

and only a high temp of 61c so far... (62c is AMD rated max temperature)

if it goes past 62c ill reduce it to a 3% AI OC.

I'm talking about THE MOTHERBOARD HEAT SINK FAN. The one your asking us about. Not your CPU heat sink....

YOu know, this thing right here.

I'm talking about THE MOTHERBOARD HEAT SINK FAN. The one your asking us about. Not your CPU heat sink....

YOu know, this thing right here.

kilerchese

oh, sorry bout that.. yeah mine looks exactly like that one there. (it mounts right on the northbridge i think.. when the pc is upright, its directly to the left of the CPU/HSF, and directly Right of the back of pc (which i have open parts of the backplate, and its right in front of the back case fan..

so it pretty much sits right between the cpu/hsf, and the back exhaust case fan.

manual for mobo says to install it above the heatsink/pipe assembly, and shows multiple pictures of the spot i just described to you.